Home / 171,974,843.15-257,707,172.84-126,313,432.43

Finding the Fourth Proportional to 171,974,843.15, 257,707,172.84 and 126,313,432.43

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Solution

The fourth proportional to 171,974,843.15, 257,707,172.84 and 126,313,432.43 is: 189,282,786.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,974,843.15 : 257,707,172.84 = 126,313,432.43 : x
  2. Step 2: Convert to fraction form
    171,974,843.15/257,707,172.84 = 126,313,432.43/x
  3. Step 3: Cross multiply
    171,974,843.15x = 257,707,172.84 × 126,313,432.43
  4. Step 4: Simplify right side
    171,974,843.15x = 32,551,877,561,331,568
  5. Step 5: Solve for x
    x = 32,551,877,561,331,568/171,974,843.15
  6. Step 6: Final answer
    x = 189,282,786.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.